Attributes can be referenced in the model either by using their Name or by using the A(k) attribute array where k is calculated as the index into the attribute array.
Named attributes may also be one or two dimensional arrays defined by the operand ‘Array index’ as listed below :
| Name | Scaler attribute, No. array |
| Name(N) | One dimensional array of N attributes starting at index 1 |
| Name(Low..high) | One dimensional array of (high-low+1) attributes in the range low to high |
| Name(N1,N2) | Two dimensional attribute array with N1 rows and N2 columns |
| Name(low1..high1,low2..high2) | Two dimensional attribute array with start and end indices indicated |
| Prompt | Description | Default |
| Number | Attribute number [integer] | Sequential |
| Name | Attribute name [symbol name] | Blank |
| 1-D array Index | First dimension index into named attributes array | No array |
| 2-D array index | Second dimension index into the named attributes array | No array |
| Initial Value | Initial Value upon entry creation | 0.0 |
| Prompt | Value |
| Name | Process time |
| Initial | Value 5 |
| Prompt | Value |
| Name | Duedates(3) |
| 1-D array Index | 2..4 |
| Initial Value | 1 |
| Initial Value | 6.667 |
| Initial Value | 4.2 |